Though it was just a pitch for an interview, a few years later, he found himself working on a Wizards team that was looking to create an underground world
What better way to make them instantly more competitive than to give them their own Tenki in the form a Field Spell (it also searches Alien Brain, if that matters)
It's a Quick-Play Spell as well, allowing it to even be played as an interruption
Combine a Cloudstone Curio, Phyrexian Altar, Life Finds a Way, mana, and a nonartifact creature token, and you can make token copies of your creature through population, then the Altar uses a neverending resource to pay for the Dreadnought again
1 Assault on Osgiliath
Today, these are pretty tough to find, especially sealed